Dead pigs foul Shanghai waterway

Chinese authorities are working to clean up and explain the presence of more than 3,300 pig carcasses in a river that supplies most of Shanghai’s water, The Wall Street Journal reported. Residents started seeing the pigs last Thursday in the Huangpu River, about 43 miles from the city. Authorities had no explanation for what killed the pigs, though one industry expert said the cause could be a disease outbreak, possibly on a single farm. Shanghai officials said they found no health threat in the city’s water, though one test detected a pig-borne disease in the river called porcine circovirus, which doesn’t normally affect humans.